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Problems With RFID - Technovelgy
Technical problems with RFID
Problems with RFID Standards
RFID has been implemented in different ways by different manufacturers; global standards are still being worked on. It should be noted that some RFID devices are never meant to leave their network (as in the case of RFID tags used for inventory control within a company). This can cause problems for companies.
Consumers may also have...
Related topics : rfid tag reader system / rfid security tag reader / active rfid tag and reader / small rfid tag reader / rfid tag and reader working
Advantages of RFID Versus Barcodes - Technovelgy
Advantages of RFID Versus Barcodes
RFID tags and barcodes both carry information about products. However, there are important differences between these two technologies:
Barcode readers require a direct line of sight to the printed barcode; RFID readers do not require a direct line of sight to either active RFID tags or passive RFID tags .
RFID tags can be read at much greater distances; an RFID reader can pull information from a tag at distances up to 300 feet. The range to read a barcode is much less, typically no more than fifteen feet.
RFID readers can interrogate, or read, RFID tags much...
Related topics : passive rfid tag read range / active rfid tag read range / rfid active reader passive tag / read write rfid tags / rfid tag read range
How RFID Works - Technovelgy
How does RFID work? A Radio-Frequency IDentification system has three parts:
A scanning antenna
A transceiver with a decoder to interpret the data
A transponder - the RFID tag - that has been programmed with information.
The scanning antenna puts out radio-frequency signals in a relatively short range. The RF radiation does two things:
It provides a means of communicating with the transponder (the RFID tag) AND
It provides the RFID tag with the energy to communicate (in the case of passive RFID tags ).
This is an absolutely key part of the technology; RFID tags do not need to contain batteries, and can therefore remain usable for very long periods of time...
Related topics : active rfid tag battery life / passive rfid transponder tags / rfid active reader passive tag / passive rfid tag antenna / passive rfid tag read range
What is RFID? - Technovelgy
Home | Glossary | Timeline | New
What is RFID?
RFID stands for Radio-Frequency IDentification. The acronym refers to small electronic devices that consist of a small chip and an antenna. The chip typically is capable of carrying 2,000 bytes of data or less.
The RFID device serves the same purpose as a bar code or a magnetic strip on the back of a credit card or ATM card; it provides a unique...
What is RFID? - Technovelgy
Home | Glossary | Timeline | New
What is RFID?
RFID stands for Radio-Frequency IDentification. The acronym refers to small electronic devices that consist of a small chip and an antenna. The chip typically is capable of carrying 2,000 bytes of data or less.
The RFID device serves the same purpose as a bar code or a magnetic strip on the back of a credit card or ATM card; it provides a unique...
Related topics : radio frequency identification device rfid technology / radio frequency identification device rfid / credit card companies using rfid technology / rfid card reader device / rfid tag and reader working
Are There Concerns About How RFID Will Be Used? (Update)
Are There Concerns About How RFID Will Be Used? (Update)
Civil liberties groups (among others) have become increasingly concerned about the use of RFIDs to track the movements of individuals. For example, passports will soon be required to contain some sort of RFID device to speed border crossings. Scanners placed throughout an airport, for example, could track the location of every passport over...
Related topics : active rfid tag uses / rfid tags uses / rfid tag information / rfid tag location tracking / rfid tag scanner
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